Spencer, Edgar Winston. <br/><br/>
Earth science :  understanding environmental systems / 
Edgar W. Spencer. 
 - Boston :  McGraw-Hill,  c2003. 
 - xxi, 518 p. :  ill. (chiefly col.), col. maps ;  28 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0072341467 (pbk. : acidfree paper) 
<br/><br/><label>LCCN: </label>2002025073 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth sciences.
<br/><br/><label>LC Class. No.: </label>QE28  / .S7 2003 
<br/><br/><label>Dewey Class. No.: </label>550  / SEP 2003